There’s still Greece, for example, which is likely to be the focus of this week’s meetings of European finance ministers. There’s Germany, and its trade surplus. And there’s the U.S., the U.K. and all the other places with triple-A-rated debt that may not be rated triple-A for much longer.

So why the focus on China, where shares closed Monday at their lowest in five weeks, with the benchmark Shanghai Composite ending below 3000 at its weakest since Feb. 9? Well, as one bank put it on Monday: “Are we facing a ‘growth miracle’ or will China be the next bubble to burst?”